Barbell collar



FIG. 1 is a perspective view of a barbell collar, showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is another perspective view shown in a condition of use thereof;

FIG. 4 is another perspective view shown in a condition of use thereof;

FIG. 5 is another perspective view shown at an enlarged scale thereof;

FIG. 6 is another perspective view shown at an enlarged scale thereof;

FIG. 7 is a front view thereof;

FIG. 8 is a back view thereof;

FIG. 9 is a top view thereof;

FIG. 10 is a bottom view thereof;

FIG. 11 is a side view thereof; and,

FIG. 12 is another side view thereof.

The broken lines shown in the figures are for the purpose of illustrating environmental structure and portions of the barbell collar that form no part of the claimed design. 

CLAIM The ornamental design for a barbell collar, as shown and described. 